S.C. Code Ann. § 7-15-680: Sending absentee ballot to covered voter.

An absentee ballot must be sent to a covered voter, upon the voter's request, at least forty-five days prior to any election. However, if a ballot application from a covered voter arrives within the forty-five day period, an absentee ballot must be sent to the covered voter no later than five o'clock p.m. on the next business day after the application arrives.